Railway-tie.



M. J1. MUNsoN 1@4 s; V. WHITAKBR. -RAILWAY TIE. APPL'IoATIoN 111.1111 121113.17, 1911.

Patented Apr. 11, 1911.

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MARION J'. MUNSON AND SAMUEL V. WHITAKER, OF STOCKPORT, IOWA.

RAILWAY-TIE.

To all whom t may concern: y Be it known that we, MARION J. Munson and SAMUEL V. VVHIMKER, citizens of the United States, residing at Stockport, in the county of Van Buren, State of Iowa, have invented a new and useful Railway-Tie, of which the following is a specification.

This invention relates to composite railway ties of that type formed of reinforced concrete7 the object of the invention being to provide a tie of this character which is cheap to manufacture and which is capable of yielding to any necessary extent during climatic changes and which can also yield to any necessary extent during the passage of cars thereover, the said tie thus possessing all of the advantages of the ordinary wooden tie and at the same time being more durable.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings, the preferred form of the invention has been shown.

In said drawings Figure 1 is a plan view of a tie constructed in accordance with the present invention. Fig. 2 is a side elevation thereof, the rails thereon being shown in section. Fig. 3 is a section on line A-B Fig. 1. Fig. 4 is a section on line C-D Fig. 2. Fig. 5 is a section on line E-F Fig. 1. Fig. 6 is a section on line Gr-H Fig. 1.

Referring to the figures 'by characters of reference, 1 designates a side frame made of a single length of angle iron bent to form a bottom strip 2, upstanding end strips 3, and top strips 4 and 5. These top strips lie substantially parallel with the bottom strip and the strip 5 has an extension 6 designed to lap the strip 4. The extension 6 has a slot 7 therein for the reception of a stud 8 projecting upwardly from that portion of the strip 4 lapped by the extension. This stud, 8, has a head for preventing its withdrawal from the extension 6. Two of these frames are provided, the same being arranged parallel and oppositely disposed, with their flanges projecting inwardly. The said Specification of 'Letters Patent.

Application led February 17, 1911.

Patented Apr. 1I, i911. serial No. 609,098.

flanges of the two frames are connected by cross strips 9 riveted or otherwise fastened to them.

This space between the two frames is filled with concrete, the frames and the connecting strips being embedded within the concrete body portion so that their outer faces will lie flush with the corresponding faces of said body portion. This concrete body portion has been indicated at 10 and contains a desired number of reinforcing wires or rods 11 preferably arranged longitudinally therein. The concrete body may be divided into two parts by a division plate 12 extending transversely of the middle portion of the tie but it is to be understood that this plate may be removed if desired so as to leave a space between the two portions of the body and .thus increase the fiexibility of the tie.

two frames, these depressions constituting seats for cushioning blocks 14 of wood or the like. The flanges of the top portions of the frames are preferably cut away to receive the end portions of these cushioning blocks, as shown particularly in Fig. 4.

Rail engaging plates 15 are mounted on the flanges of the top strips 4 and 5 and are engaged by the threaded ends of bolts 16 eX- tending entirely through the tie, these bolts being arranged within the Hanges of the frames and the heads of the bolts bearing upwardly against the flanges of the bottom strip 2. Nuts engage the threaded ends of the bolts and serve to securely bind the plates 15 upon the tie and upon the base flanges of the rails 17. These nuts have been indicated at 18 and suitable means may be employed for locking them against rotation upon the bolts.

It will be apparent that a tie constructed `as described will be more durable than a wooden tie, the concrete being reinforced by the metal rods or wires 11 and by the angle irons constituting the frames, these irons protecting the edge portions of the concrete body. The cushion blocks 14 relieve the tie of the pounding action of the cars passing over the rails and by dividing the concrete body at the center in the manner described, the entire tie is free to expand and contract and also to spring at its center. As the top strips are slidably connected in the manner hereinbefore set forth, the springing action of the tie is not interfered with. The lugs or projections 8,however,limit this springing action.

That is claimed is 1. A composite railway tie including metallic side frames each made up of an angle strip having slidably connected lapping end portions, connections between the frames, and a plastic body interposed between and engaging the frames.

2. A composite railway tie including side frames each made up of a single length of angular material having slidably connected lapping ends, connections between the frames, a plastic body interposed between and engaging the frames, the outer faces of the frames and connections lying fiush with the corresponding faces of the body, rail engaging devices upon the upper portions of the frames, and means extending through said frames for engaging said devices to secure them upon the tie.

3. composite railway tie including side frames each made up of a single length of angular material having slidably connected lapping ends, connections between said frames, a plastic body interposed between the frames, the outer faces of the frames lying flush with the body, lreinforcing devices embedded within the body, said body having depressions in its upper face and the frames being cut away at the ends of the depressions, cushioning blocks seated within the depressions and projecting into said cut away portions of the frames, and means eX- tending through the tie and engaging the upper and lower portions ofthe frames, for securing a rail upon the tie.

In testimony that we claim the foregoing as our own, we have hereto affixed our signatures in the presence of two witnesses.

MARION J. MUNSON. SAMUEL V. WHITAKER.

Witnesses M. C. Morir,l J. H. MCCARTY.

llopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

